Home / 4,328.20-6,491.20-1,407.34

Finding the Fourth Proportional to 4,328.20, 6,491.20 and 1,407.34

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Solution

The fourth proportional to 4,328.20, 6,491.20 and 1,407.34 is: 2,110.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,328.20 : 6,491.20 = 1,407.34 : x
  2. Step 2: Convert to fraction form
    4,328.20/6,491.20 = 1,407.34/x
  3. Step 3: Cross multiply
    4,328.20x = 6,491.20 × 1,407.34
  4. Step 4: Simplify right side
    4,328.20x = 9,135,325.41
  5. Step 5: Solve for x
    x = 9,135,325.41/4,328.20
  6. Step 6: Final answer
    x = 2,110.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.